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You searched for: mediatype:texts AND collection:fieldiana AND subject:"Edrioasteroidea -- Utah"
[texts]Revised phylogeny and functional interpretation of the Edrioasteroidea based on new taxa from the Early and Middle Ordovician of western Utah (Volume Fieldiana, Geology, new series, no. 29) - Guensburg, Thomas Edgar
Five new edrioasteroid genera from the Early and Middle Ordovician of western Utah greatly enlarge the record of this scarce echinoderm class during its early diversification. Data from a diversity of taxa were used to generate a new phylogeny and classification of the edrioasteroids. New and reinterpreted morphology, particularly for the aboral surface, is introduced. Forty-two characters were scored for 15 taxa and subjected to a PAUP 3.0 parsimony analysis...
Keywords: Edrioasteroidea -- Classification; Edrioasteroidea -- Utah; Paleontology -- Ordovician; Paleontology -- Utah; Echinodermata, Fossil
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